Simplify the following expression.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the problem.Roberto invested some money at 8%, and then invested $3000 more than twice this amount at 11%. His total annual income from the interest was $3930. How much was invested at 11%?
A. $27,000 B. $9000 C. $24,000 D. $2700
Mathematics
Provide an appropriate response.If 
= 2, find 
f(x).
A. 3 B. 2 C. 1 D. Does not exist
Mathematics
Determine if the given polar coordinates represent the same point.(3, ?/6), (-3, 7?/6)
A. Yes B. No
Mathematics
Express using positive exponents. Then, if possible, simplify.
A. 6x2
B. 
C. 2x-6
D. 2x6
Mathematics